Transmittance Test and Wide Compatibility? The transmission fluid tester is used to test the transmittance of transmission fluid. It can visually reflect the impurities, pollutants or sediments contained in the fluid, and facilitate further analysis of the purity and quality of the transmission fluid. The transmission fluid tester kit is suitable for all types of transmissions, including manual, automatic, semi-automatic, dual-clutch, continuously variable and electronically variable, etc. ?Oil Temperature Measurement and ?/? Unit? The transmission fluid gauge has a built-in temperature sensor that can measure and display the actual temperature of the transmission oil, reflecting the working status and load of the transmission, helping to keep the fluid within the normal temperature range. The digital transmission oil tester supports switching between two temperature units (?/?), and the measurement range is: -10?~125? (14?~257?). Optical Detection Technology 80cm Hose? The digital transmission oil tester uses a high-precision photoelectric transceiver sensor probe, which can respond and detect quickly, making the measurement results more accurate and reliable. The 80cm(31.5 inches) hose makes the detection more flexible. The hose is made of PTFE material, which has high oil resistance, high oxidation resistance and corrosion resistance, which gives the transmission fluid diagnostic tester tool a longer service life. ?2.8-Inch LCD Screen and User-Friendly Design? The transmission fluid tester has a 2.8-inch backlit display, so the test data can be clearly seen even in use scenarios such as strong light or darkness. The hand-held part of the transmission oil tester is made of silicone substrate, which is comfortable and stable to hold, and the testing work can be easily completed with one hand. ?Battery Powered and Automatic Shutdown? The transmission oil tester is powered by 4pcs 1.5V AAA batteries (NOT included with the tester), and the battery compartment symbol in the upper left corner of the screen will display the battery power. If there is no operation for 5 minutes, it will automatically shut down to save power.